63869983 has 2 divisors, whose sum is σ = 63869984. Its totient is φ = 63869982.

The previous prime is 63869959. The next prime is 63870017. The reversal of 63869983 is 38996836.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63869983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63869983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63869903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31934991 + 31934992.

It is an arithmetic number, because the mean of its divisors is an integer number (31934992).

Almost surely, 2^63869983 is an apocalyptic number.

63869983 is a deficient number, since it is larger than the sum of its proper divisors (1).

63869983 is an equidigital number, since it uses as much as digits as its factorization.

63869983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The square root of 63869983 is about 7991.8698062468. The cubic root of 63869983 is about 399.7289476180.

The spelling of 63869983 in words is "sixty-three million, eight hundred sixty-nine thousand, nine hundred eighty-three".